sort program vs service program

sort program and service program both are nouns.

Word	Noun	Adjective	Verb	Adverb
sort program	Yes	No	No	No
service program	Yes	No	No	No

As nouns, service program is a hypernym of sort program; that is, service program is a word with a broader meaning than sort program:

sort program: a utility program that sorts data items
service program: (computer science) a program designed for general support of the processes of a computer

Other hypernyms of sort program include utility, utility program.

sort program (noun)	service program (noun)
a utility program that sorts data items	(computer science) a program designed for general support of the processes of a computer